When triangle ABC is rotated about side AB, what figure is formed?
2 answers:
Answer:
Cone
Step-by-step explanation:
We are given that a triangle ABC .
We have to find that what shape is formed when a triangle ABC is rotated about side AB.
A given triangle ABC is a right triangle.
When we rotate the figure about side AB then the figure will be cone .The side AB will be height of cone and side AC will be radius of cone.
Hence, when a triangle ABC is rotated about side AB, the cone is formed.
Answer: Cone
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Answer:
3. ∠BDE ≅ ∠BAC; Corresponding Angles Postulate 5. ΔBDE ~ ΔBAC; Angle-Angle (AA) Similarity Postulate
Step-by-step explanation:
3) Statement ∠BDE ≅ ∠BAC;
Corresponding Angles Postulate
The Corresponding Angles Postulate states that given two parallel lines, in this case DE and AC cut by a transversal one (AB) than these corresponding angles are congruent.
5) ΔBDE ~ ΔBAC; Angle-Angle (AA) Similarity Postulate
If two pairs of corresponding angles are congruent (∠D and ∠A, ∠E and ∠C) than these triangles are similar.
